To find Mirabelle Ervine for the College of Winterhold quest “Revealing the Unseen,” follow these detailed steps:

1. Locate the College of Winterhold:
– The College of Winterhold is located southeast of Winterhold, near the frozen lake. You can find it by traveling south from Winterhold Stables toward Riften.

2. Enter the College:
– Once you arrive, enter the College of Winterhold. You will see several buildings, including the Hall of Attainment and the Hall of Elements.

3. Find Mirabelle Ervine:
– Mirabelle Ervine is located in the Hall of Attainment. Specifically, she sleeps in her room on the second floor of the southwestern wing of the Hall of Attainment between 3 AM and 8 AM every night.
– During the day, she can be found in various locations within the College:
– Hall of Elements: She often wanders around this area for two hours after breakfast.
– Courtyard: She spends five hours here, often reading and sometimes giving you a tour of the College.

4. Speak with Mirabelle:
– Once you find Mirabelle, speak with her to initiate the quest. She will provide information about the Staff of Magnus and its possible location in the Dwemer ruins of Mzulft.

5. Mark Mzulft on Your Map:
– After speaking with Mirabelle, she will mark the location of Mzulft on your map. Mzulft is southeast of Windhelm, accessible by traveling south from Windhelm Stables toward Riften.

By following these steps, you will be able to locate Mirabelle Ervine and initiate the quest “Revealing the Unseen” in the College of Winterhold.